(during substorm)
1Substorm — A series of images made by ultraviolet light imager on the THEMIS spacecraft showing the aurora and Earth s upper atmosphere. The glowing side is the atmosphere lit up by the Sun s light energy and the oval of light is the aurora. During a… …
2THEMIS — The THEMIS mission uses a constellation of five NASA satellites to study energy releases from Earth s magnetosphere known as substorms, magnetic phenomena that intensify auroras near Earth s poles. The name of the mission is an acronym for Time… …
3geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …
4Cluster (spacecraft) — Cluster Operator European Space Agency in international collaboration with NASA Major contractors Dornier GmbH (now part of EADS) Mission type Orbiter Satellite of Earth …
5Aurora (astronomy) — Aurora Borealis redirects here. For other uses, see Aurora Borealis (disambiguation). Aurora Australis redirects here. For the ship, see Aurora Australis (icebreaker). For the book, see Aurora Australis (book). Northern lights redirects here. For …
6Magnetosphere — A magnetosphere is formed when a stream of charged particles, such as the solar wind, interacts with and is deflected by the intrinsic magnetic field of a planet or similar body. Earth is surrounded by a magnetosphere, as are the other planets… …
7Magnetosphere of Saturn — Aurorae on the south pole of Saturn as viewed by Hubble Internal field[1 …
8Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
9Feng shui — Chinese pic=Fengshui Compass.jpg picsize=250px picc Luopan Compass t= s= kanji= hiragana=ふうすい revhep=fūsui kunrei=hûsui p=fēngshuǐ hanja= hangul= rr=pungsu mr=p ungsu vie=Phong thủy tgl=pungsoy tha=ฮวงจุ้ย ( Huang Jui ) j= fung1 seoi2… …
10Birkeland current — Schmatic of the Birkeland or Field Aligned Currents and the ionospheric current systems they connect to.[1] A Birkeland current is a set of currents which flow along geomagnetic field line connecting the Earth’s magnetosphere to the Earth s hi …
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